喷雾干燥法制备柠檬醛微胶囊及微胶囊稳定性研究

发布时间：2018-04-18 14:15

本文选题：柠檬醛 + 微胶囊　；参考：《食品工业科技》2017年15期

【摘要】：以甲基纤维素(MC)、羧甲基壳聚糖(CMCTS)和海藻酸钠(Alg)为复合壁材,通过层层自组装法,采用喷雾干燥法制备柠檬醛微胶囊,研究了壁材组成对微胶囊的柠檬醛含量、形态、吸水性能及稳定性的影响,以柠檬醛含量为指标确定柠檬醛微胶囊的最佳壁材组成及工艺条件为:甲基纤维素(内层)0.8g/50mLH_2O、羧甲基壳聚糖1.0g/30mLH_2O、海藻酸钠6.0g/180mLH_2O、甲基纤维素(外层)0.8g/50mLH_2O,柠檬醛含量为4.54%。添加双亲性MC作为内层壁材使柠檬醛含量提高了3.12%。以MC作为外层壁材使柠檬醛含量提高了0.23%,90d内微胶囊的吸水量降低了0.42%,提高了微胶囊在贮存过程中的稳定性。
[Abstract]:Citral microcapsules were prepared by layer by layer self-assembly method with methyl cellulose (MCN), carboxymethyl chitosan (CMCTS) and sodium alginate (Alg) as composite wall materials. The effect of wall material composition on the content and morphology of citral in microcapsules was studied.Effects of water absorption and stability,The optimum wall material composition and technological conditions of citral microcapsule were determined as follows: methyl cellulose (inner layer 0.8 g / 50 mLH _ 2O), carboxymethyl chitosan 1.0 g / 30 mL H _ 2O, sodium alginate 6.0 g / 180 mL H _ 2O, methyl cellulose (outer layer 0.8 g / 50 mL H _ 2O), citral content 4.54%.Addition of amphiphilic MC as inner wall material increased citral content by 3.12%.Using MC as the outer wall material, the content of citral increased 0.23 ~ 90 days, the water absorption of microcapsules decreased 0.422, and the stability of microcapsules during storage was improved.
【作者单位】：海南大学海南省精细化工工程技术研究中心海南大学;
【基金】：国家自然科学基金资助项目(21466011;21264007)
【分类号】：TQ655

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